Tong Woei Horng's answer to Lee Meimei's Secondary 3 E Maths Singapore question.
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Alternative Method to solve 12b).My previous method uses a method taught in A.Maths.This method uses formulas and methods taught in E.Maths.Hope it helps you.
Date Posted:
5 years ago
Thanks a lot. I have not learnt this cos formula thingy. I will ask my teacher about it. Thanks a lot for yr help.
You are welcome.
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